Question

below is some part of code in my download gateway

if (!isset($_GET['f']) || empty($_GET['f'])) {die("<h1>URL Malfunction</h1><br/><p><i>Please Try Later</i>");}
if (strpos($_GET['f'], "\0") !== FALSE){ die("<h1>URL Malfunction</h1><br/><p><i>Please Try Later</i>");}
                            #Check URL, find resource Path

$fileName = basename($_GET['f']);
$file_path=(string)makeDownloadFilePath($fileName,"dir");

if(!is_file($file_path)){die("<h1>404 Not found</h1><br/><p><i>The resource you requested is not available</i>");}

$fileSize = filesize($file_path); 



header("Pragma: public");
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: public");                    #Build Response#
header("Content-Description: File Transfer");
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=\"$fileName\"");
header("Content-Transfer-Encoding: binary");
header("Content-Length: " . $fileSize);


$file = @fopen($file_path,"rb");
if ($file) {
  while(!feof($file)) {                 #File Transfer#
   print(fread($file, 1024*8));
   flush();
   if (connection_status()!=0) {
    @fclose($file);
    die();
         }
    }
 @fclose($file);

//The File is Downloaded . Closing Connections

I am using GET method to receive the filename. The filename and its path will e genrated from gateway. Now the problem is When i click on download in a page, instead of showing a Download dialog, the browser just renders the file content as text on screen. For eg, i am downloading foo.mp3. the binary contents are displayed as weird text on screen.
Its echoing a warning like: We cannot change the Headers. headers already sent to …

Can any one tell , where i had made the mistake?

Thanks

Answer 1

We cannot change the Headers. headers already sent to..

This error comes when you print any thing before php your header command.